Steering device equipped with air bag
First Claim
1. A steering device equipped with an air bag, comprising:
- a steering wheel at which an air bag, which expands when a vehicle suddenly decelerates, is provided;
driving means for tilting said steering wheel toward a driver when the vehicle suddenly decelerates;
holding means for maintaining a tilted state of said steering wheel; and
a tilt adjusting mechanism connected to said driving means which changes and adjusts an angle of said steering wheel at times when the vehicle is in an ordinary state, wherein said driving means includes a connected member connected to a region within said tilt adjusting mechanism which changes the angle of said steering wheel;
a wire, one end of said wire being connected to said connected member; and
a pretensioner connected to another end of said wire.
1 Assignment
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Accused Products
Abstract
A steering device equipped with an air bag, in which the air bag is completely inflated and expanded in a state in which a steering wheel has been moved in a direction toward a driver when a vehicle suddenly decelerates. The steering device equipped with the air bag has a driving device which tilts the steering wheel toward the driver when the vehicle suddenly decelerates and includes a pawl, a tilt cam, a connected member, a wire, and a pretensioner and a holding device which maintains a tilted state of the steering wheel and includes a lock member and a lock plate. When the vehicle suddenly decelerates, the wire is pulled, the tilt cam rotates, and the pawl moves away from a steering support. The steering wheel is tilted a maximum amount toward the driver, this state is maintained by the holding device, and the air bag inflates and expands. Accordingly, the steering wheel is oriented toward the driver and an expanded air bag is oriented toward the driver such that kinetic energy of the driver is effectively absorbed.
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Citations
19 Claims
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1. A steering device equipped with an air bag, comprising:
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a steering wheel at which an air bag, which expands when a vehicle suddenly decelerates, is provided; driving means for tilting said steering wheel toward a driver when the vehicle suddenly decelerates; holding means for maintaining a tilted state of said steering wheel; and a tilt adjusting mechanism connected to said driving means which changes and adjusts an angle of said steering wheel at times when the vehicle is in an ordinary state, wherein said driving means includes a connected member connected to a region within said tilt adjusting mechanism which changes the angle of said steering wheel; a wire, one end of said wire being connected to said connected member; and a pretensioner connected to another end of said wire. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 19)
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2. A steering device equipped with an air bag, comprising:
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a steering wheel at which an air bag, which expands when a vehicle suddenly decelerates, is provided; driving means for tilting said steering wheel toward a driver when the vehicle suddenly decelerates, said driving means including;
a connected member connected to a region within said tilt adjusting mechanism which changes the angle of said steering wheel;
a wire, one end of said wire being connected to said connected member; and
a pretensioner connected to another end of said wire; andholding means for maintaining a tilted state of said steering wheel, said holding means including;
a lock pin formed at an element which is integral with said steering wheel; and
a lock mechanism formed at a fixed member, and when said steering wheel is tilted toward a driver, said lock mechanism engages with said lock pin so as to be unable to separate from said lock pin. - View Dependent Claims (3, 15, 16, 17, 18)
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11. A steering device equipped with an air bag, comprising:
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a steering wheel at which an air bag, which expands when a vehicle suddenly decelerates, is provided; driving means for tilting said steering wheel toward a driver when the vehicle suddenly decelerates, said driving means including;
a connected member connected to a region within said tilt adjusting mechanism which changes the angle of said steering wheel;
a wire, one end of said wire being connected to said connected member; and
a pretensioner connected to another end of said wire; andholding means provided at an intermediate portion of said wire so as to maintain a tilted state of said steering wheel, said holding means including;
a base having a rectangular opening portion, ratchet teeth being formed at an inner periphery of said opening portion;
a slider to which said wire is connected;
a lock member connected to said slider, and inserted into said opening portion of said base, and moving together with said slider; and
a lock plate connected to said lock member via a plate spring, and having ratchet teeth which engage with said ratchet teeth of said base. - View Dependent Claims (12, 13, 14)
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Specification